<template>
    <transition>
        <div class="add-song" v-show="showFlag" @click.stop>
            <div class="header">
                <h1 class="title">添加歌曲到列表</h1>
                <div class="close" @click="ToggleShow">
                    <i class="icon-close"></i>
                </div>
            </div>
            <div class="search-box-wrapper">
                <search-box ref="searchbox" @query="onQueryChange" placeholder="搜索歌曲"></search-box>
            </div>
            <div class="shortcut" v-show="!query">
                <switches :switches="switches" :currentIndex="currentIndex" @switch="switchItem"></switches>
                <div class="list-wrapper">
                    <scroll ref="songListScroll" class="list-scroll" v-if="currentIndex === 0" :data="playHistory">
                        <div class="list-inner">
                            <song-list @select="selectSong" :songs="playHistory"></song-list>
                        </div>
                    </scroll>
                    <scroll :refreshDelay="refreshDelay" ref="searchListScroll" class="list-scroll" v-if="currentIndex === 1" :data="searchHistory">
                        <div class="list-inner">
                            <search-list @deleteItem="deleteSearchHistory" @selectItem="setQuery" :searches="searchHistory"></search-list>
                        </div>
                    </scroll>
                </div>
            </div>
            <div class="search-result" v-show="query">
                <suggest 
                    :query="query" 
                    :showSinger="showSinger" 
                    @select="selectSuggest"
                    @listScroll="blurInput">
                </suggest>
            </div>
            <top-tip ref="topTip">
                <div class="tip-title">
                    <i class="icon-ok"></i>
                    <span class="text">1首歌曲已经添加到播放队列</span>
                </div>
            </top-tip>
        </div>
    </transition>
</template>

<script>
import { mapActions, mapGetters } from 'vuex'
import { SearchMixin } from 'common/js/mixin'

import SearchBox from 'base/search-box/search-box'
import Suggest from 'components/suggest/suggest'
import Switches from 'base/switches/switches'
import Scroll from 'base/scroll/scroll'
import SongList from 'base/song-list/song-list'
import Song from 'common/js/song'
import SearchList from 'base/search-list/search-list'
import TopTip from 'base/top-tip/top-tip'

export default {
    mixins: [
        SearchMixin
    ],
    props: {

    },
    components: {
        SearchBox,
        Suggest,
        Switches,
        Scroll,
        SongList,
        SearchList,
        TopTip
    },
    data() {
        // 部分公用的属性和方法已经在mixin里定义
        return {
            // 默认不显示
            showFlag: false,

            showSinger: false,

            currentIndex: 0,

            switches: [
                {name: '最近播放'},
                {name: '搜索历史'}
            ]
        }
    },
    computed: {
        ...mapGetters([
            'playHistory'
        ])
    },
    methods: {
        // 部分公用的属性和方法已经在mixin里定义

        // 切换显示方法
        ToggleShow() {
            this.showFlag = !this.showFlag
            console.log(this.currentIndex)
            setTimeout(() => {
                if (this.currentIndex === 0) {
                    this.$refs.songListScroll.refresh()
                } else {
                    this.$refs.searchListScroll.refresh()
                }
            }, 20)
        },

        selectSuggest() {
            this.saveSearch()
            this.showTip()
        },

        switchItem(index) {
            this.currentIndex = index
        },

        // 被选中的歌曲添加到播放列表
        selectSong(song, index) {
            if (index !== 0) {
                // 需要new一个song实例
                this.insertSong(new Song(song))
                this.showTip()
            }
            // this.ToggleShow()
        },

        showTip() {
            this.$refs.topTip.ToggleShow()
        },

        ...mapActions([
            'insertSong'
        ])
    }
}
</script>

<style scoped lang="stylus" rel="stylesheet/stylus">
  @import "~common/stylus/variable"
  @import "~common/stylus/mixin"

  .add-song
    position: fixed
    top: 0
    bottom: 0
    width: 100%
    z-index: 200
    background: $color-background
    &.slide-enter-active, &.slide-leave-active
      transition: all 0.3s
    &.slide-enter, &.slide-leave-to
      transform: translate3d(100%, 0, 0)
    .header
      position: relative
      height: 44px
      text-align: center
      .title
        line-height: 44px
        font-size: $font-size-large
        color: $color-text
      .close
        position: absolute
        top: 0
        right: 8px
        .icon-close
          display: block
          padding: 12px
          font-size: 20px
          color: $color-theme

    .search-box-wrapper
      margin: 20px
    .shortcut
      .list-wrapper
        position: absolute
        top: 165px
        bottom: 0
        width: 100%
        .list-scroll
          height: 100%
          overflow: hidden
          .list-inner
            padding: 0px 20px
    .search-result
      position: fixed
      top: 124px
      bottom: 0
      width: 100%
    .tip-title
      text-align: center
      padding: 18px 0
      font-size: 0
      .icon-ok
        font-size: $font-size-medium
        color: $color-theme
        margin-right: 4px
      .text
        font-size: $font-size-medium
        color: $color-text
</style>